New BGB324 study points to novel mechanism to enhance immunotherapy efficacy

On September 25, 2016 Leading oncology biopharmaceutical company BerGenBio AS, reported important new preclinical study data on its first-in-class AXL inhibitor, BGB324 (Press release, BerGenBio, SEP 25, 2016, View Source [SID:SID1234515416]). The study showed AXL to be a key factor in tumour resistance to the emerging class of new immune checkpoint inhibitors that can be targeted through combination therapy with BGB324. The study data was presented in a poster today at CRI-CIMT-EATI-AACR – The 2nd International Cancer Immunotherapy Conference (CIMT) (Free CIMT Whitepaper), in New York.

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The new study evaluated whether BGB324 used in combination with immune checkpoint inhibitors (anti-CTLA-4 and anti-PD-1) in mouse carcinoma models enhanced the effect of immune checkpoint blockade in aggressive adenocarcinomas displaying limited immunogenicity. BGB324 is a highly selective small molecule inhibitor of the AXL receptor tyrosine kinase. An important regulator of the tumour cell plasticity related to EMT (Epithelial-to-Mesenchymal Transition), AXL signalling is also a key suppressor of the innate anti-tumour immune response. Thus AXL contributes uniquely to both tumour intrinsic and extrinsic mechanisms that suppress anti-tumour immunity. The new study shows that AXL was induced in tumours by immune checkpoint inhibitor treatment and postulated that this could limit their efficacy.

BGB324 is the only selective AXL inhibitor currently in clinical development. Phase Ib clinical trials are underway as single agent and in combination with standard of care drug (cytarabine) in acute myeloid leukaemia (AML), and in combination with erlotinib in non-small cell lung cancer (NSCLC).

Richard Godfrey, Chief Executive Officer of BerGenBio, commented:
"We believe this strong new preclinical data clearly demonstrates the rationale for combining BGB324 with immune checkpoint inhibitors to treat aggressive cancers. This study shows that these inhibitors actually increase AXL expression that supports immune evasion. Treatment with BGB2324 counters this, increasing tumor immunogenicity and promoting the anti-tumour response. In addition to the ongoing development of BGB324 in AML and NSCLC, this data suggests that BGB324 could also be used in combination with cancer immunotherapeutic agents to enhance their efficiency."

Novartis announces positive top-line results from ASCEND-4, a Phase III trial of Zykadia® in untreated adult ALK+ NSCLC patients

On September 23, 2016 Novartis reported top-line results from its Phase III ASCEND-4 clinical study for Zykadia (ceritinib) in patients with advanced anaplastic lymphoma kinase-positive (ALK+) non-small cell lung cancer (NSCLC) (Press release, Novartis, SEP 23, 2016, View Source [SID:SID1234515307]). The multicenter, randomized trial (NCT01828099), which assessed the efficacy and safety of Zykadia in previously untreated adult patients, met its primary endpoint, demonstrating clinically significant improvement in progression free survival (PFS) compared to standard chemotherapy, including maintenance.

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In addition to PFS, clinically meaningful results were achieved across key secondary efficacy measures, including objective response rate (ORR) and duration of response (DoR). The adverse events observed were consistent with the previously known adverse event profile of Zykadia. A full analysis of ASCEND-4 data along with detailed efficacy and safety results will be submitted for presentation at a major medical congress.

"Zykadia has proven to be an important treatment option for ALK+ NSCLC patients who have progressed following treatment with crizotinib," said Alessandro Riva, Global Head, Oncology Development and Medical Affairs, Novartis Oncology. "We are pleased to see these topline results show promise in untreated patients with advanced disease, and look forward to sharing these data with regulatory authorities in the coming months."

Of more than 1.8 million lung cancer diagnoses each year, approximately 2-7% of cases have the ALK gene rearrangement[1],[2]. These patients are candidates for treatment with a targeted ALK inhibitor[2].

About ASCEND-4
ASCEND-4 was a Phase III randomized, open label, multicenter global clinical trial to evaluate the safety and efficacy of Zykadia compared to standard chemotherapy, including maintenance, in adult patients with Stage IIIB or IV ALK+ NSCLC who received no prior therapy for their advanced disease.

The study was conducted at 203 clinical trial sites globally across 31 countries and randomized across 376 patients. Patients received Zykadia orally at 750 mg/daily or standard pemetrexed based platinum doublet chemotherapy per label (pemetrexed 500 mg/m2 plus cisplatin 75 mg/m2 or carboplatin AUC 5-6) including pemetrexed maintenance.

The primary endpoint of the trial was PFS by blinded independent review committee. Key secondary endpoints included: overall survival, PFS by investigator assessment, overall response rate, duration of response, disease control rate and time to response.

About Zykadia
Zykadia is an oral, selective inhibitor of anaplastic lymphoma kinase (ALK), a gene that can fuse with others to form an abnormal "fusion protein" that promotes the development and growth of certain tumors in cancers including non-small cell lung cancer (NSCLC). Zykadia was granted conditional approval in the EU for the treatment of adult patients with ALK-positive advanced NSCLC previously treated with crizotinib. In the US, Zykadia was granted accelerated approval for the treatment of patients with ALK-positive metastatic NSCLC who have progressed on or are intolerant to crizotinib. Zykadia is currently approved in over 55 countries worldwide. Please visit www.NovartisOncology.com/news/product-portfolio/zykadia (link is external) for additional information.

Zykadia Important Safety Information
Zykadia may cause serious side effects.

Zykadia may cause stomach upset and intestinal problems in most patients, including diarrhea, nausea, vomiting and stomach-area pain. These problems can be severe. Patients should follow their doctor’s instructions about taking medicines to help these symptoms, and should call their doctor for advice if symptoms are severe or do not go away.

Zykadia may cause severe liver injury. Patients should have blood tests prior to the start of treatment with Zykadia, every two weeks for the first month of treatment and monthly thereafter, and should talk to their doctor right away if they experience any of the following symptoms: tiredness (fatigue), itchy skin, yellowing of the skin or the whites of the eyes, nausea or vomiting, decreased appetite, pain on the right side of the abdomen, urine turns dark or brown, or bleeding or bruising more easily than normal.

Zykadia may cause severe or life-threatening swelling (inflammation) of the lungs during treatment that can lead to death. Symptoms may be similar to those symptoms from lung cancer. Patients should tell their doctor right away about any new or worsening symptoms, including trouble breathing or shortness of breath, fever, cough, with or without mucous, or chest pain.

Zykadia may cause very slow, very fast, or abnormal heartbeats. Doctors should check their patient’s heart during treatment with Zykadia. Patients should tell their doctor right away if they feel new chest pain or discomfort, dizziness or lightheadedness, faint, or have abnormal heartbeats, blue discoloration of lips, shortness of breath, swelling of lower limbs or skin, or if they start to take or have any changes in heart or blood pressure medicines.

Zykadia may cause high levels of glucose in the blood. People who have diabetes or glucose intolerance, or who take a corticosteroid medicine have an increased risk of high blood sugar with Zykadia. Patients should have glucose blood tests prior to the start of treatment with Zykadia and during treatment. Patients should follow their doctor’s instructions about blood sugar monitoring and call their doctor right away with any symptoms of high blood sugar, including increased thirst and/or urinating often.

Zykadia may cause high levels of pancreatic enzymes in the blood and may cause pancreatitis. Patients should have blood tests prior to the start of treatment with Zykadia and as needed during their treatment with Zykadia. Patients should talk to their doctor if they experience signs and symptoms of pancreatitis which including upper abdominal pain that may spread to the back and get worse with eating.

Before patients take Zykadia, they should tell their doctor about all medical conditions, including liver problems; diabetes or high blood sugar; heart problems, including a condition called long QT syndrome; if they are pregnant, if they think they may be pregnant, or if they plan to become pregnant; are breastfeeding or plan to breastfeed.

Zykadia may harm unborn babies. Women who are able to become pregnant must use a highly effective method of birth control (contraception) during treatment with Zykadia and up to 3 months after stopping Zykadia. It is not known if Zykadia passes into breast milk. Patients and their doctor should decide whether to take Zykadia or breastfeed, but should not do both.

Patients should tell their doctor about medicines they take, including prescription medicines, over-the-counter medicines, vitamins and herbal supplements. If they take Zykadia while using oral contraceptives, the oral contraceptives may become ineffective.

The most common adverse reactions with an incidence of >=10% were diarrhea, nausea, vomiting, tiredness (fatigue), liver laboratory test abnormalities (requires blood test monitoring), abdominal pain, decreased appetite, constipation, rash, kidney laboratory test abnormalities (requires blood test monitoring), heartburn and anemia. Grade 3-4 adverse reactions with an incidence of >=5% were liver laboratory test abnormalities, tiredness (fatigue), diarrhea, nausea and hyperglycemia (requires blood test monitoring).

Patients should stop taking Zykadia and seek medical help immediately if they experience any of the following, which may be signs of an allergic reaction:

Difficulty in breathing or swallowing
Swelling of the face, lips, tongue or throat
Severe itching of the skin, with a red rash or raised bumps
Patients should tell their doctor of any side effect that bothers them or does not go away. These are not all of the possible side effects of Zykadia. For more information, patients should ask their doctor or pharmacist.

Patients should take Zykadia exactly as their health care provider tells them. Patients should not change their dose or stop taking Zykadia unless their health care provider advises them to. Zykadia should be taken once a day on an empty stomach. Patients should not eat for at least 2 hours before and 2 hours after taking Zykadia. If a dose of Zykadia is missed, they should take it as soon as they remember. If their next dose is due within the next 12 hours, they should skip the missed dose and take the next dose at their regular time. They should not take a double dose to make up for a forgotten dose. Patients should not drink grapefruit juice or eat grapefruit during treatment with Zykadia, as it may make the amount of Zykadia in their blood increase to a harmful level. If patients have to vomit after swallowing Zykadia capsules, they should not take more capsules until their next scheduled dose.

Please see full Prescribing Information for Zykadia.

Xenetic Biosciences to Present at the Ladenburg Thalmann 2016 Healthcare Conference

On September 22, 2016 Xenetic Biosciences, Inc. (OTCQB: XBIO) ("Xenetic" or the "Company"), a biopharmaceutical company developing next-generation biologic drugs and novel orphan oncology therapeutics, reported that Scott Maguire, CEO of Xenetic Biosciences, will present at the Ladenburg Thalmann 2016 Healthcare Conference on Tuesday, September 27, 2016 at 3:30 p.m. ET in New York at the Sofitel New York (Press release, Xenetic Biosciences, SEP 22, 2016, View Source [SID1234537812]).

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During his presentation, Mr. Maguire will provide a corporate update and discuss the Company’s clinical and regulatory strategies for its product candidates currently in development in-house and with Xenetic’s biotechnology and pharmaceutical partners. The Company’s product pipeline currently includes Virexxa (sodium cridanimod), which is being evaluated for the treatment of endometrial cancer and triple negative breast cancer, ErepoXen, a polysialylated form of erythropoietin (EPO), a hormone produced by the kidneys to maintain red blood cell production and prevent anemia, and OncoHist, which is being evaluated for the treatment of acute myeloid leukemia (AML) in refractory patients and refractory non-Hodgkin lymphoma (NHL).

Mr. Maguire will also discuss Xenetic’s $100 million license deal with Shire and provide an overview of the product candidate and clinical status.

A live webcast of the presentation will be available by accessing the IR Calendar in the Investors section of the Xenetic website (www.xeneticbio.com). The webcast replay will be available approximately two hours after the presentation ends and will be accessible for 90 days.

Navidea Achieves $1 Million in Lymphoseek® Commercial Milestones

On September 22, 2016 Navidea Biopharmaceuticals, Inc. (NYSE MKT:NAVB) reported it will receive payments totaling $1 million from two recently achieved Lymphoseek commercial milestones under its distribution agreements with U.S. partner Cardinal Health, Inc. (Cardinal) and European partner SpePharm AG, an affiliate of Norgine B.V. (Norgine) (Press release, Navidea Biopharmaceuticals, SEP 22, 2016, View Source;p=RssLanding&cat=news&id=2205270 [SID:SID1234515279]). Navidea will collect a $500,000 milestone payment from Cardinal based on the sale of a 100,000th patient dose of Lymphoseek (technetium Tc 99m tilmanocept) injection since launch. The Company will also receive a $500,000 payment from Norgine resulting from the European Medicines Agency’s (EMA) Committee for Medicinal Products for Human Use (CHMP) positive opinion for the Lymphoseek 50 microgram kit for radiopharmaceutical preparation, a reduced-mass, single-dose vial appropriate for the radiopharmaceutical distribution model in Europe.

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"We are pleased with the meaningful progress that Navidea and its partners have made in our commercial distribution efforts in both the U.S. and Europe," said Jed Latkin, interim Chief Operating Officer and Chief Financial Officer. "These milestones reflect the growing acceptance of Lymphoseek in the U.S. for improving the outcomes in patients with melanoma, breast and oral cavity cancers and signal the expected European launch of Lymphoseek in Q42016."

Lymphoseek is approved in the U.S. by the U.S. Food and Drug Administration (FDA) for use in lymphatic mapping to locate lymph nodes draining a primary tumor site in patients with solid tumors for which this procedure is a component of intraoperative management and for guiding Sentinel Lymph Node Biopsy (SLNB) using a handheld gamma counter in patients with node negative squamous cell carcinoma of the oral cavity, breast cancer or melanoma. Lymphoseek is indicated in the EU for imaging and intraoperative detection of sentinel lymph nodes draining a primary tumor in adult patients with breast cancer, melanoma, or localized squamous cell carcinoma of the oral cavity.1

ATB-346 Shows Promising Results in Experimental Melanoma

On September 22, 2016 Antibe Therapeutics Inc. ("Antibe") (TSXV: ATE, OTCQX: ATBPF), a commercial-stage pharmaceutical growth company, reported anti-cancer potential of its lead drug, ATB-346 (Press release, Antibe Therapeutics, SEP 22, 2016, View Source [SID:SID1234515305]). In a separate study earlier this year, ATB-346 was shown to be very effective in reversing colon and intestinal tumour growth in mice. Further to this study, a new publication has shown promising results in the chemoprevention and treatment of melanoma in mice. Melanoma is one of the most drug-resistant and invasive types of cancer, and both the incidence and mortality rates are increasing.

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"Although we remain focused on our ongoing human studies to advance ATB-346 as a treatment for pain and inflammation, we have compelling data from studies of colon cancer and now melanoma," commented John Wallace, Chief Scientific Officer of Antibe. "We are encouraged by these preliminary data and plan to continue this research in support of the potential advancement of ATB-346 into selected cancer indications."

In the new publication, Dr. Angela Ianaro’s laboratory at the University of Naples (Italy), in collaboration with Dr. Wallace, examined the possibility that ATB-346 may have greater beneficial effects in terms of reducing melanoma than naproxen, the most-prescribed nonsteroidal anti-inflammatory drug ("NSAID") in the USA. NSAIDs have been shown to reduce tumour growth, but they also cause significant gastrointestinal bleeding. In contrast, ATB-346 has been shown to be GI-safe in animal studies.

The effects of ATB-346 were first compared to naproxen in an in vitro melanoma model, and was found to be much more effective. The investigators then implanted melanoma cells into mice, and monitored the growth of tumours. Treatment with naproxen had a modest beneficial effect, reducing tumour volume by 23% and tumour weight by 20%. In contrast, treatment with an equivalent dose of ATB-346 was 3-times more effective, reducing tumour volume by 69% and tumour weight by 61%. Mechanistic studies confirmed that ATB-346 was more effective in promoting death (apoptosis) of cancer cells.

The article was published online in the September issue of the journal "Pharmacological Research" and can be found at: www.sciencedirect.com/science/article/pii/S1043661816304467